CN104880584A - Insulation lead wire for 10kV power-frequency voltage-withstand test - Google Patents
Insulation lead wire for 10kV power-frequency voltage-withstand test Download PDFInfo
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- CN104880584A CN104880584A CN201510318745.7A CN201510318745A CN104880584A CN 104880584 A CN104880584 A CN 104880584A CN 201510318745 A CN201510318745 A CN 201510318745A CN 104880584 A CN104880584 A CN 104880584A
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- insulation
- withstand test
- heart yearn
- lead wire
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Abstract
The invention relates to an insulation lead wire for 10kV power-frequency voltage-withstand test. The insulation lead wire includes a core wire, an inner insulation layer wrapping the core wire, a metal shielding layer wrapping the inner insulation layer, and an outer insulation layer wrapping the metal shielding layer, the core wire is formed by the stranding of multiple copper wires, each of the two ends of the core wire is provided with an alligator clip, and the alligator clips are electrically connected with the core wire. According to the invention, the earth insulation of the lead wire is improved, and the insulation lead wire can perform the power-frequency voltage-withstand test on 10vK equipment in a narrow and inconvenient-to-detach space, and can reduce the workload during the test.
Description
Technical field
The present invention relates to a kind of insulator pin, particularly relate to a kind of insulator pin for 10kV power frequency withstand test, belong to Electric Power Equipment Insulation experimental technique field.
Background technology
According to Q/GDW09-001-2004-10600 " power equipment hand-over and preventive test " regulatory requirements, power frequency withstand test carries out the dielectric(al) test under assigned voltage for various electric equipment products, electric elements, insulating material etc., examine the dielectric level of product, find the insulation defect of test specimen, weigh superpotential ability, particularly common to the power frequency withstand test of 10KV equipment in electric company 10KV system, as isolating switch, the change of stream transformation, busbar support insulator.But along with 10KV renewal of the equipment is regenerated, collection and formula, cabinet-type equipment get more and more, simultaneously, equipment dismounting inconvenience, the problem of narrow space, also brings difficulty for carrying out power frequency withstand test to it to device miniaturization.
What the lead-in wire of existing power frequency withstand test adopted is common soft copper thin wire, in process of the test, 10KV equipment generally will rise to 30 to about 40KV, for the insulation against ground that existing lead-in wire is outside, mainly pass through air insulation, but existing a lot of 10KV equipment is in the position of narrow space, dismounting inconvenience again, does not have the air insulation distance of safe enough, brings difficulty to test.
Summary of the invention
Object of the present invention, exactly in order to solve above-mentioned prior art Problems existing, and a kind of insulator pin for 10kV power frequency withstand test is provided, change the insulation pattern of power frequency withstand test lead-in wire, improve the insulation against ground of lead-in wire, thus can to being positioned at dismounting inconvenience, the 10kV equipment of narrow space carries out power frequency withstand test, can reduce workload when testing.
The technical scheme realizing above-mentioned purpose is: a kind of insulator pin for 10kV power frequency withstand test, comprise heart yearn, be wrapped in the inner insulating layer of described heart yearn outside, be wrapped in the metal screen layer of described inner insulating layer outside and be wrapped in the external insulation layer of described metal screen layer outside, described heart yearn forms by stranded copper wire is stranded, the two ends of described heart yearn arrange a crocodile clip respectively, and described crocodile clip is electrically connected with described heart yearn.
Insulator pin for 10kV power frequency withstand test of the present invention, change the insulation pattern of power frequency withstand test lead-in wire, use for reference the structural principle design insulator pin of cable, comprise heart yearn, inner insulating layer, metal screen layer, external insulation layer successively from the inside to the outside, finally crocodile clip on heart yearn two connects, facilitates experimental wiring.Such raising experiment lead wire insulation intensity, thus not by the impact of electrical distance, compared with prior art, insulator pin of the present invention, change the insulation pattern of power frequency withstand test lead-in wire, improve the insulation against ground of lead-in wire, thus can to being positioned at dismounting inconvenience, the 10kV equipment of narrow space carries out power frequency withstand test, can reduce workload when testing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the insulator pin for 10kV power frequency withstand test of the present invention.
Embodiment
In order to make those skilled in the art can understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, embodiments of the invention, a kind of insulator pin for 10kV power frequency withstand test, comprise heart yearn 1, be wrapped in the inner insulating layer 2 of heart yearn 1 outside, be wrapped in the metal screen layer 3 of inner insulating layer 2 outside and be wrapped in the external insulation layer 4 of metal screen layer 3 outside, heart yearn 1 forms by stranded copper wire is stranded, the two ends of heart yearn 1 arrange a crocodile clip (not shown) respectively, and crocodile clip is electrically connected with heart yearn 1, wiring during convenient test.
Heart yearn 1 is the part of the conduction of insulator pin; Inner insulating layer 2 is isolated from each other between heart yearn and the earth and out of phase heart yearn on electrically; Metal screen layer 3 prevent internal field concentrate cause insulation damages, play uniform electric field effect; External insulation layer 4 plays the effect of protective seam, is the intrusion of protection insulator pin from introduced contaminants and moisture.
Insulator pin for 10kV power frequency withstand test of the present invention, comprise heart yearn 1, inner insulating layer 2, metal screen layer 3, external insulation layer 4 from the inside to the outside successively, finally crocodile clip on heart yearn 1 two connects. when in use, the insulation against ground of insulator pin improves, thus can to being positioned at dismounting inconvenience, the 10kV equipment of narrow space carries out power frequency withstand test, and adopting crocodile clip direct wiring during test, patching operations is convenient.As carried out power frequency withstand test to 10KV Capacitor banks switch, because the equipment such as Capacitor banks switch and capacitor are all gathered in cabinet, switch can cannot pull out again as wheelbarrow switch.Cause during industrial frequency withstand voltage our original conventional test lead-in wire can with over the ground or inadequate to the electrical distance of cabinet, may discharge to it during test, need us constantly to change wire locations to obtain enough distances.Use 10KV power frequency withstand test insulator pin, lead-in wire entirety insulate over the ground or to cabinet, just can complete test without the need to changing wire locations.
In sum, of the present invention for 10KV power frequency withstand test insulator pin, such raising experiment lead wire insulation intensity, thus not by the impact of electrical distance, patching operations is simple, can reduce workload when testing, the place relatively narrow and small in space, time inadequate to switch cubicle electrical distance, play good effect.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (1)
1. the insulator pin for 10kV power frequency withstand test, it is characterized in that, comprise heart yearn, be wrapped in the inner insulating layer of described heart yearn outside, be wrapped in the metal screen layer of described inner insulating layer outside and be wrapped in the external insulation layer of described metal screen layer outside, described heart yearn forms by stranded copper wire is stranded, the two ends of described heart yearn arrange a crocodile clip respectively, and described crocodile clip is electrically connected with described heart yearn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318745.7A CN104880584A (en) | 2015-06-11 | 2015-06-11 | Insulation lead wire for 10kV power-frequency voltage-withstand test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318745.7A CN104880584A (en) | 2015-06-11 | 2015-06-11 | Insulation lead wire for 10kV power-frequency voltage-withstand test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104880584A true CN104880584A (en) | 2015-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510318745.7A Pending CN104880584A (en) | 2015-06-11 | 2015-06-11 | Insulation lead wire for 10kV power-frequency voltage-withstand test |
Country Status (1)
| Country | Link |
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| CN (1) | CN104880584A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704090Y (en) * | 2004-02-06 | 2005-06-08 | 姚流文 | High-voltage shielding line |
| CN102122544A (en) * | 2011-03-08 | 2011-07-13 | 浙江省电力公司舟山电力局 | Power undersea cable for 110kV concentric high voltage test |
| CN102376385A (en) * | 2010-08-05 | 2012-03-14 | 王星星 | Novel pressure-resistant silicon rubber shielding wire |
| JP2012220215A (en) * | 2011-04-04 | 2012-11-12 | Viscas Corp | Withstand voltage test method for plant joint part of long power cable |
| CN202994856U (en) * | 2012-10-31 | 2013-06-12 | 山西省电力公司检修分公司 | General test cable used for transformer test |
| CN204242628U (en) * | 2014-04-23 | 2015-04-01 | 沈阳沈缆四环电缆制造有限公司 | High direct voltage small area analysis steel band shielded type cable |
| CN204303447U (en) * | 2014-04-23 | 2015-04-29 | 沈阳沈缆四环电缆制造有限公司 | High direct voltage small area analysis brass wire shielding cable |
| CN204731276U (en) * | 2015-06-11 | 2015-10-28 | 国网上海市电力公司 | A kind of insulator pin for 10kV power frequency withstand test |
-
2015
- 2015-06-11 CN CN201510318745.7A patent/CN104880584A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704090Y (en) * | 2004-02-06 | 2005-06-08 | 姚流文 | High-voltage shielding line |
| CN102376385A (en) * | 2010-08-05 | 2012-03-14 | 王星星 | Novel pressure-resistant silicon rubber shielding wire |
| CN102122544A (en) * | 2011-03-08 | 2011-07-13 | 浙江省电力公司舟山电力局 | Power undersea cable for 110kV concentric high voltage test |
| JP2012220215A (en) * | 2011-04-04 | 2012-11-12 | Viscas Corp | Withstand voltage test method for plant joint part of long power cable |
| CN202994856U (en) * | 2012-10-31 | 2013-06-12 | 山西省电力公司检修分公司 | General test cable used for transformer test |
| CN204242628U (en) * | 2014-04-23 | 2015-04-01 | 沈阳沈缆四环电缆制造有限公司 | High direct voltage small area analysis steel band shielded type cable |
| CN204303447U (en) * | 2014-04-23 | 2015-04-29 | 沈阳沈缆四环电缆制造有限公司 | High direct voltage small area analysis brass wire shielding cable |
| CN204731276U (en) * | 2015-06-11 | 2015-10-28 | 国网上海市电力公司 | A kind of insulator pin for 10kV power frequency withstand test |
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| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |